class_docstr: Strategy Compiler.
  
  Currently, this just entails resolving device attributes,
  but this can be easily modified to do more in the future.
code: def __init__(self, graph_item):
      self._graph_item = graph_item
      self._device_resolver = None
  
imports: import os
  from abc import ABC, abstractmethod
  from datetime import datetime
  from autodist.const import DEFAULT_SERIALIZATION_DIR
  from autodist.graph_item import GraphItem
  from autodist.kernel.common.utils import get_op_name
  from autodist.proto import strategy_pb2
  from autodist.resource_spec import ResourceSpec
label_desc: Use image node_id 1 to create a new StrategyCompiler object  with example: obj = StrategyCompiler(graph_item)